Unfortunately, in Windows 10, Microsoft decided that drivers should be slimmed down, so Realtek's drivers were changed to not include the Realtek HD Audio Manager software. Since I have a dual-boot setup for Windows 7 and Windows 10, I booted into Windows 7 and used Process Monitor to capture the actual registry key change that occurs when you disable front panel jack detection using the Realtek HD Audio Manager application that is included with the drivers in Windows 7. This StackExchange post talked about changing the EnableDynamicDevices registry key to disable front panel jack detection, but that didn't work for me, and it's completely wrong. However, I wanted my speakers and my headphones to work at the same time. Plugging in my headset would mute my speakers. After numerous searches online, I initially could not find a way to have both my speakers (plugged into the back audio port of my motherboard) and my headset (plugged into the front panel audio port of my case) output the same sound stream simultaneously.